CN216085945U - Ring main unit and cabinet body thereof - Google Patents

Abstract

At least one embodiment of the utility model provides a cabinet body of a ring main unit, which comprises a first cabinet body main body, a plurality of cabinet surface units and a partition plate. The first cabinet body has an opening that opens toward a first direction. The plurality of cabinet units collectively enclose the opening, and each of the plurality of cabinet units includes a cabinet frame, a first panel, and a second panel. The counter frame has a center sill. The first panel and the second panel are respectively installed on two sides of the middle beam of the cabinet frame. The partition plate is arranged between two adjacent cabinet face units in the second direction, so that the first cabinet body, the plurality of cabinet face units and the partition plate jointly form a plurality of operation spaces. The width of the cabinet frame of each cabinet unit in the second direction is equal to the height of the cabinet frame in the third direction. The cabinet frame, the first panel and the second panel which are suitable for different operation units can be conveniently combined to adapt to different design requirements.

Description

Ring main unit and cabinet body thereof

Technical Field

The utility model relates to a ring main unit and a cabinet body thereof.

Background

The Ring Main Unit (Ring Main Unit) is a group of electric equipment which is arranged in a metal or nonmetal insulating cabinet body or is made into an assembled interval Ring Main power supply Unit, and the core part of the Ring Main Unit adopts a load switch and a circuit breaker, so that the Ring Main Unit has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like. The transformer substation is widely applied to distribution stations and box-type substations of load centers of urban residential districts, high-rise buildings, large public buildings, factory enterprises and the like.

The existing ring main unit can not realize the free combination of each operation module. For different arrangement requirements of each operation module from customers, each part forming the ring main unit needs to be redesigned. The cost of design, manufacture and installation is high.

SUMMERY OF THE UTILITY MODEL

At least one embodiment of the utility model provides a cabinet body of a ring main unit, which comprises a first cabinet body and a plurality of cabinet surface units. The first cabinet body has a box shape and includes an operation space and an opening opened toward the first direction. The plurality of cabinet units collectively enclose the opening, and each of the plurality of cabinet units includes a cabinet frame, a first panel, and a second panel. The counter frame has a center beam extending in a second direction. The first panel is mounted to one side of the center sill of the cabinet frame in a third direction. The second panel is mounted to the other side of the center sill of the cabinet frame in a third direction. The width of the cabinet frame of each cabinet unit in the second direction is equal to the height of the cabinet frame in the third direction. The first direction, the second direction and the third direction are perpendicular to each other.

The counter frame, the first panel and the second panel adapted to different operation units may be selected or designed for the characteristics of the operation unit to be installed in the operation space. Since the width of the cabinet frame of each cabinet unit in the second direction is equal to the height of the cabinet frame of each cabinet unit in the third direction, the cabinet frames, the first panel and the second panel which are suitable for different operation units can be conveniently combined to adapt to different design requirements. The cabinet body meeting different design requirements can use common components. The cost of designing, installing and manufacturing the cabinet is reduced.

For example, in some embodiments, the positions of the intermediate beams of the cabinet frames of at least two of the plurality of cabinet units in the third direction are offset from each other.

The first panel and the second panel which are suitable for different operation units are different in size, and the requirements for the first panel and the second panel which are different in size can be realized by adjusting the position of the middle beam of the cabinet frame.

For example, in some embodiments, the first panel is formed as an operation panel adapted to mount an operation unit, and the second panel is formed as a door capable of opening and closing.

For example, in some embodiments, the operating unit includes at least one of a load switch, a combiner, a circuit breaker, and a lift cabinet operating unit.

For example, in some embodiments, the counter frame comprises two vertical beams on either side in the second direction, the middle beam connecting the two vertical beams. The vertical beam extends in a third direction and is bent in a zigzag shape to have a first section, a second section, and a third section connecting the first section and the second section. The plurality of cabinet units are mounted such that the first, second and third sections of adjacent vertical beams overlap each other.

Since the vertical beams are bent in a zigzag shape and overlapped with each other, the cabinet is conveniently installed and the strength of the cabinet is enhanced.

For example, in some embodiments, the first section and the second section are each perpendicular to the third section.

For example, in some embodiments, the two vertical beams of the same deck frame are bent in a zigzag shape with their orientations opposite to each other.

For example, in some embodiments, the zigzag orientations of the two vertical beams of the same deck frame are the same as each other.

For example, in some embodiments, the counter frame comprises two vertical beams on both sides in the second direction, the middle beam connects the two vertical beams, and the middle beam and the vertical beams of the plurality of counter units are respectively identical.

Because the middle beams and the vertical beams of the cabinet surface units are respectively the same, the design and manufacturing cost is reduced.

At least one embodiment of the present invention provides a ring main unit, which includes the above-mentioned cabinet body and a plurality of operation units, which are installed in the operation space of the cabinet body.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Throughout this specification, the same or similar components have the same or similar reference numerals.

Fig. 1 shows a cabinet body of a ring main unit according to an embodiment of the present disclosure;

fig. 2 illustrates a first sub-cabinet of a cabinet according to an embodiment of the present disclosure, wherein a first panel, a second panel, and a third panel of the first sub-cabinet are removed;

fig. 3 illustrates a first cabinet body of the first sub-cabinet in fig. 2;

fig. 4A illustrates a cabinet frame for a load switch according to an embodiment of the present disclosure;

FIG. 4B shows an enlarged view of a portion of FIG. 4A within the dashed box;

FIG. 5 illustrates a counter frame for a cluster appliance according to an embodiment of the present disclosure;

figure 6 illustrates a cabinet frame for a circuit breaker according to an embodiment of the present disclosure; .

FIG. 7 illustrates a cabinet frame for lifting a cabinet operating unit according to an embodiment of the present disclosure;

fig. 8 illustrates a first panel for a load switch according to an embodiment of the present disclosure;

FIG. 9 illustrates a first panel for a cluster tool according to an embodiment of the present disclosure;

figure 10 illustrates a first panel for a circuit breaker according to an embodiment of the present disclosure;

FIG. 11 illustrates a first panel for lifting a cabinet operating unit according to an embodiment of the present disclosure;

fig. 12 illustrates a second panel for a load switch according to an embodiment of the present disclosure;

FIG. 13 illustrates a second panel for a cluster tool according to an embodiment of the present disclosure;

figure 14 illustrates a second panel for a circuit breaker according to an embodiment of the present disclosure;

FIG. 15 illustrates a second panel for lifting a cabinet operating unit according to an embodiment of the present disclosure;

fig. 16 and 17 illustrate a third panel for a load switch and a combined appliance, respectively, according to an embodiment of the present disclosure;

fig. 18 illustrates a second sub-cabinet of the cabinet according to an embodiment of the present disclosure, with a fourth panel of the second sub-cabinet removed; and is

Fig. 19 illustrates a third sub-cabinet of the cabinet according to an embodiment of the present disclosure.

List of reference numerals

First sub-cabinet 100

First panels 110, 110a, 110b, 110c, 110d

Second panels 120, 120a, 120b, 120c, 120d

First cabinet body 130

Counter frames 140, 140a, 140b, 140c, 140d

Center sill 141

Vertical beam 142

First section 1421

Second section 1422

Third section 1423

Operating space 150

Third panel 160

Second sub-cabinet 200

Second space 210

Fourth panel 220

Air box 300

The third sub-cabinet 400

Fifth panel 410

Third space 420

Detailed Description

Hereinafter, a leakage protector according to an embodiment of the present invention is described in detail with reference to the accompanying drawings. In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in conjunction with the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The singular forms include the plural unless the context otherwise dictates otherwise. Throughout the specification the terms "comprises," "comprising," "has," "having," and the like, are used herein to specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

In addition, even though terms including ordinal numbers such as "first", "second", etc., may be used to describe various elements, the elements are not limited by the terms, and the terms are used only to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present invention.

Fig. 1 shows a cabinet body of a ring main unit according to an embodiment of the present disclosure. As shown in fig. 1, the cabinet includes a first sub-cabinet 100, a second sub-cabinet 200, and an air box 300. The first sub-cabinet 100 is used to mount a plurality of operation units (not shown), which may include at least one of a load switch, a circuit breaker, a combined electrical appliance, and a lift-up cabinet operation unit, but the present disclosure is not limited thereto. The load switch is, for example, a switching device capable of switching on, off, and carrying current under normal conditions (which may include a predetermined overload coefficient) and passing a predetermined abnormal (e.g., short-circuit) current in a power distribution system, and is a switching on/off switch with a dedicated arcing contact, an arc extinguishing device, and a spring breaking device. A circuit breaker refers, for example, to a switching device capable of closing, carrying, and opening a current under normal circuit conditions and closing, carrying, and opening a current under abnormal circuit conditions (such as a short circuit) within a prescribed time. The combined electrical apparatus refers to, for example, an apparatus in which two or more electrical apparatuses are combined into a whole according to wiring requirements, and each electrical apparatus still maintains original performance, and includes, for example, a disconnecting switch, an earthing switch, a voltage transformer, a current transformer, a bus, a lightning arrester, a cable terminal, and the like. The lift cabinet operating unit includes, for example, a busbar. The second sub-cabinet 200 is used to mount a cable connected to the main line. The gas tank 300 is used to store insulating gas.

Here, for convenience of description, a "first direction X", a "second direction Y", and a "third direction Z" are defined, the first direction X, the second direction Y, and the third direction Z being perpendicular to each other. In the present embodiment, the first direction X is a front-rear direction, the second direction Y is a left-right direction, and the third direction Z is an up-down direction.

As shown in fig. 1, the first sub-cabinet 100 and the air box 300 are installed in the third direction Z of the second sub-cabinet 200, specifically, above the second sub-cabinet 200. The first sub-cabinet 100 is installed in the first direction X of the air box 300, specifically, in front of the air box 300. The first sub-cabinet 100 is also referred to as a "front cabinet", and the second sub-cabinet 200 is also referred to as a "bottom cabinet". In other embodiments, the respective sub-cabinets 100, 200 and the air boxes 300 may be differently arranged as needed.

Fig. 2 illustrates a first sub-cabinet 100 of a cabinet according to an embodiment of the present disclosure, wherein the first panel 110, the second panel 120, and the third panel 160 of the first sub-cabinet 100 are removed. Fig. 3 illustrates the first cabinet main body 130 of the first sub-cabinet 100 in fig. 2.

As shown in fig. 1 to 3, the first sub-cabinet 100 includes a first cabinet main body 130 and a plurality of cabinet units. The first cabinet body 130 has a box shape and includes an operation space 150 and an opening opened toward the first direction X (i.e., toward the front). The plurality of cabinet units collectively enclose the opening to enclose the operating space 150.

Each of the plurality of cabinet units includes a third panel 160, a cabinet frame 140 having a middle beam 141, a first panel 110 mounted to one side of the middle beam 141 of the cabinet frame 140 in the third direction Z, and a second panel 120 mounted to the other side of the middle beam 141 of the cabinet frame 140 in the third direction Z. The third panel 160, the cabinet frame 140, the first panel 110, and the second panel 120, which are suitable for different operation units, may be selected or designed for characteristics of the operation units that need to be installed in the operation space 150.

The third panel 160 is installed at one side (here, above) of the cabinet frame 140 in the third direction Z. The third panel 160 may also be referred to as a "small low-voltage compartment panel" which may be used to mount a low-voltage operating unit. The third panel 160 may be provided as a separate module. A suitable third panel 160 may be mounted to the first cabinet body 130 to meet different design requirements. The cabinet frame 140 is mounted to the first sub-cabinet 100 and serves to support the first and second panels 110 and 120. The counter frame 140, the first panel 110 and the second panel 120 constitute an integral module. The width of the cabinet frame 140 of each cabinet unit in the second direction Y and the height in the third direction Z are equal. That is, the size of each overall module is the same. Accordingly, the cabinet frame 140, the first panel 110, and the second panel 120 (i.e., the integral modules adapted to different operation units) adapted to different operation units (e.g., high voltage operation units) may be conveniently combined to accommodate different design requirements. Cabinets meeting different design requirements may use common integral modules or components thereof. The cost of designing, installing and manufacturing the cabinet is reduced.

As shown in fig. 1, the positions of the middle beams 141 of the three cabinet units in the third direction Z are the same. In other embodiments, the position of the middle beam 141 in the third direction Z may be adjusted to meet the requirements of different operation units. For example, the positions of the intermediate beams 141 of the cabinet frames 140 of at least two of the plurality of cabinet units in the third direction Z may be offset from each other.

Fig. 4A and 5-7 illustrate cabinet frames 140a, 140b, 140c, 140d (collectively 140) for load switches, combiners, circuit breakers, and lift cabinet operating units, respectively, according to an embodiment of the present disclosure. Fig. 4B shows an enlarged view of a portion in a broken-line frame in fig. 4A.

As shown in fig. 2 and 4A to 7, the counter frame 140 further has two vertical beams 142 located at both sides in the second direction Y, and the middle beam 141 connects the two vertical beams 142. The distance between the outer sides of the two vertical beams 142 corresponds to the width of the cabinet frame 140, and the two vertical beams 142 extend in the third direction Z by a length corresponding to the height of the cabinet frame 140. For example, the middle beams 141 and the vertical beams 142 of the cabinet frames 140 of all cabinet units may be designed to be identical, but the orientation of the vertical beams 142 may be different. Thus, different cabinet frames 140 can be formed with the same vertical beams 142 and middle beam 141, and only the position where the middle beam 141 is mounted to the two vertical beams 142 in the third direction Z needs to be adjusted, which saves manufacturing costs and design costs. However, the present disclosure is not limited thereto, and the middle beam 141 and the vertical beam 142 of the cabinet frame 140 of the cabinet unit may be designed differently.

In the embodiment shown in fig. 4A-7, the vertical beam 142 is bent in a zigzag shape to have a first section 1421, a second section 1422, and a third section 1423 connecting the first and second sections 1421 and 1422. The first and second sections 1421 and 1422 are, for example, perpendicular to the third section 1423, respectively. The cabinet frames 140 of multiple cabinet units are mounted such that the first 1421, second 1422, and third 1423 sections of adjacent vertical beams 142 overlap each other, which facilitates positioning and increases cabinet strength when mounted. It should be noted that the vertical beam 142 is not limited to be bent in a zigzag shape, and may have other shapes, for example, other cross-sectional shapes, such as L-shape and T-shape.

In the embodiment shown in fig. 4A-7, the two vertical beams 142 of the same cabinet frame 140 are bent in a zigzag shape with opposite orientations to each other, or are symmetrical to each other. In this case, the vertical beams 142 of the adjacent cabinet frames 140 corresponding to each other are bent in zigzag-shaped orientations opposite to each other. For example, as shown in fig. 4A-6, the vertical beams 142 of the cabinet frames 140a, 140b for the load switch and the combined electrical appliance are bent in a zigzag orientation opposite to the zigzag orientation in which the vertical beams 142 of the cabinet frame 140c for the circuit breaker are bent. The present disclosure is not limited thereto, and in other embodiments, the two vertical beams 142 of the same cabinet frame 140 are bent in a zigzag shape with the same orientation. In this case, the zigzag orientations in which the corresponding vertical beams 142 of all the cabinet frames 140 are bent are the same as each other.

Fig. 8-11 illustrate first panels 110a, 110b, 110c, 110d (collectively 110) for load switches, switchgears, circuit breakers, and lift cabinet operating units, respectively, according to an embodiment of the present disclosure. The first panel 110 is mounted to an upper side of the cabinet frame 140 and is formed as an operation panel adapted to mount an operation unit. As shown in fig. 8 and 11, the first panel 110 may be designed differently for different operation units.

Fig. 12-15 illustrate second panels 120a, 120b, 120c, 120d (collectively 120) for load switches, switchgears, circuit breakers, and lift cabinet operating units, respectively, according to an embodiment of the present disclosure. The second panel 120 is mounted to the lower side of the cabinet frame 140 and is formed as a door that can be opened and closed. As shown in fig. 12 and 15, the second panel 120 may be designed differently for different operation units.

The corresponding cabinet frame 140, first panel 110, and second panel 120 of fig. 4A-7, 8-11, and 12-15 may be assembled to one another. By way of example only, the first panel 110c for the circuit breaker is designed to be shorter in height in the third direction Z than the first panels 110a, 110b, 110d for the load switches, the switchgear and the lift cabinet operating units. Accordingly, the second panel 120c for the circuit breaker is designed to have a greater height in the third direction Z than the second panels 120a, 120b, 120d for the load switch, the switchgear and the lift cabinet operating unit. Also, the middle beam 141 of the deck frame 140c for the circuit breaker is designed to be higher than the middle beams 141 of the deck frames 140a, 140b, 140d for the load switch, the combiner, and the lift cabinet operation unit in position in the third direction Z.

Fig. 16 and 17 illustrate third panels 160a, 160b (collectively 160) for a load switch and a combination, respectively, according to an embodiment of the present disclosure. In the present embodiment, the overall dimensions of these third panels 160a, 160b are the same. The third panel 160 may be designed differently for different operation units.

Fig. 18 illustrates a second sub-cabinet 200 of a cabinet according to an embodiment of the present disclosure, wherein a fourth panel 220 (see fig. 1) of the second sub-cabinet 200 is removed. The second sub-cabinet 200 includes a plurality of second spaces 210 for accommodating cables connected to the trunk line corresponding to the operating spaces 150 of the first sub-cabinet 100 located thereabove.

Fig. 19 illustrates a third sub-cabinet 400 of cabinets according to an embodiment of the present disclosure. The third sub-cabinet 400 includes a fifth panel 410 in the form of a door that can be opened and closed. In some embodiments different from the cabinet body of the ring main unit shown in fig. 1, the cabinet body of the ring main unit may include a third sub-cabinet body 400. For example, the third sub-cabinet 400 may be mounted above the first sub-cabinet 100 and the air box 300. The third sub-cabinet 400 includes a plurality of third spaces 420 corresponding to the operating spaces 150 of the first sub-cabinet 100 located in front thereof. The plurality of third spaces 420 may be used to accommodate secondary control elements such as buttons for controlling opening and closing, indicator lights, combination switches, and the like.

The scope of the present disclosure is not defined by the above-described embodiments but is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a cabinet body of looped netowrk cabinet which characterized in that includes:

a first cabinet body having a box shape and including an operation space and an opening opened toward a first direction,

a plurality of cabinet units collectively closing the opening, the plurality of cabinet units each comprising:

a counter frame having a center sill extending in a second direction,

a first panel mounted to one side of the middle beam of the cabinet frame in a third direction; and

a second panel mounted to the other side of the middle beam of the cabinet frame in a third direction; and

wherein a width of the cabinet frame of each of the cabinet units in the second direction and a height in the third direction are equal, the first direction, the second direction, and the third direction being perpendicular to each other.

2. The cabinet according to claim 1,

the positions of the intermediate beams of the cabinet frames of at least two of the plurality of cabinet units in the third direction are offset from each other.

3. The cabinet according to claim 1,

the first panel is formed as an operation panel adapted to mount an operation unit, and the second panel is formed as a door capable of opening and closing.

4. The cabinet according to claim 3,

the operation unit includes at least one of a load switch, a combined electrical appliance, a circuit breaker, and a lift cabinet operation unit.

5. The cabinet according to claim 1,

the counter frame comprises two vertical beams positioned at two sides in the second direction, the middle beam is connected with the two vertical beams, the vertical beams extend in the third direction and are bent into a Z shape to be provided with a first section, a second section and a third section which is connected with the first section and the second section,

the plurality of cabinet units are mounted such that the first, second and third sections of adjacent vertical beams overlap each other.

6. The cabinet according to claim 5,

the first section and the second section are each perpendicular to the third section.

7. The cabinet according to claim 5,

the two vertical beams of the same cabinet frame are bent into a Z shape, and the Z shape faces are opposite to each other.

8. The cabinet according to claim 5,

the two vertical beams of the same cabinet frame are bent into a Z shape, and the Z shape faces to the same direction.

9. The cabinet according to claim 1,

the counter frame comprises two vertical beams positioned at two sides in the second direction, the middle beam is connected with the two vertical beams,

the middle beams and the vertical beams of the plurality of cabinet units are respectively the same.

10. A ring main unit, comprising:

the cabinet according to any one of claims 1-9; and

a plurality of operating units installed in the operating space of the cabinet.

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